Underframe for cars.



A. J. MQCAULEY.

UNDERFRAME FOR CARS.

APPLICATION FILED SEPT. 3, 1909.

985,361., Patented Feb. 28, 1911.

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Patented Feb. 28, 1911.

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A. J. MGGAULEY.

UNDERFRAME FOR CARS.

APPLICATION FILED SEPT. 3, 1909 A. J. MGGAULEY.

UNDERFR AME FOR CARS.

APPLICATION FILED SEPT. s, 1909.

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Patented Feb. 28,

M m% mm WA M Wlinssaa ALBERT J. MQCAULEY, O1? CHICAGO, ILLINOIS.

UNDERFRAME' non; cans.

"To all whom 'it may concern:

Be it known that I, ALBERT J. MGGAULEY, a citizen of the United States, residing at Chicago, Illinois, have invented a certain new and useful Improvement in Underframes .for Cars, of which the following is a full, 'clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use, the same, reference being had to the accompanying drawings, in which Figure 1 is'a plan View of an underframe constructed in accordance with this invention; Fig. 2 is a perspective view ofa portion of the underframe shown in'Fig. 1;

. Fig. 3 is a detail view showing'a slightly modified form of underframe section;Fig. 4 is a plan view showing underframe sections having short side sills; Fig. 5 is a side elevation of the underframe shown in Fig. 4; Fig. 6 is a vertical sectional view of the center sill shown in Fig. 4; Fig. 7 is a plan view of a modified form of underframe; Fig. 8 is a detail view of a modifiedform of underframe section; Fig. 9 is a plan View showing a further modification; Fig. 10

illustratesa form wherein the sections are arranged on opposite sides of a center sill; and Fig. 11 is a plan view showing another modified form.

My invention relates to improvements inunderframes for cars.

Owing to the fact that. various underframe parts may be integrally connected together when composed of cast metal, an

underframe so constructed has many very desirable features not found in 'the usual type of built up underframes. How

ever, prior to this invention, very'few cast The cast metal sections of this underframe' are simple, they can be assembled easily, andwhen secured together provide a very strong underframe havin a much smaller number of'parts than t e usual built up underframes.

with said sill sections.

Specification of Letters Patent. Patented Feb. 28, 1911-5 Application filed September 8,1909. Serial No. 516,104.

'the ends of the underframe, each of said castings comprising an end sill 1, a bolster 2, draft sills 3, short side sills 4, and diagonal braces 5. Each bolster is provided with a center bearing 6. 7 and 8 respectively indieate short center and side sill sections which project laterally from the bolster, a cross bearersection9 being formed integral Side sills 10 which connect the end castings A, are preferably secured to sections B jarra-nged between said castings. Each section B is a single casting comprising a center sill section '11 having end and intermediate extensions-12-and -,13 which constitute staggered cross bearer sections. One-half of a cross bearer is formed by sections 12 and 13, which are preferably riveted or otherwise suitably secured together, the opposite half thereof being formed by an extension 14 which projects laterally from a center sill section.

The end portions of each section B overlap adjacent sections and are preferably provided with lugs 15 which interlock therewith. If desired the different sections may be secured together by rivets or other fastening devices.

Fig. 3 illustrates an underframe section consisting of a center sill section 16 having lateral extensions which constitute cross bearer sections. The center sill section 16 is provided with lugs 17 and recesses 18 which are so arranged that the lugs will extend .into the recesses of a similar section;

The corners of this section are cut away as indicated at 19 so as to fit between webs 20 on a similar section, when the parts are assembled.

Figs. 4, 5 and 6 illustrate an underframe having end sections O each consisting of an end,sill 21, short side sills 22 and 23, draft sills 24, abolster section 25, a crossbearer section 32, and a short center sill section 26, the latter being provided with an integral projection 27 which extends into a recess in an adjoining section. The sections D arranged between the bolsters, like the sections shown in Fig.1, have substantially Z shaped faces which extend across the car and overlap adjoining sections. Each section D is asubstantially Z shaped casting and comprises,

sign as those shown in Fig. 7.

Fig. 9, each connot provided with a center sill section 28 having end and intermediate lateral extensions 29 which form cross bearer sections, and short side sill sections 30. The adjacent ends of the side sill sections are preferably connected together by plates 31. The main bolster section 25 may be secured to the adjoining section 29 in any suitable manner. The bolsters are connected together by a tension member 33 which is shown in the form of a plate riveted to the under side of the sections D, although if desired, commercial shapes, rods or other connecting members may be used in lieu thereof. At least three sections are preferably secured together by a member which extendsunder an intermediate section because this forms a structure wherein tension stresses which tend to separate the sections are'borne by the connecting'member.

Each center'sill section 28 is preferably provided with a lug 34 which overlaps and extends into a recess in an adjoining section.

Fig. 7 illustrates an underframe having an end section E of substantially the same construction as previously described. The sections F, arrangedv between the bolsters, each have end and intermediate extensions 35 and -36 which constitute cross bearer sections,

side and center sill members 37 and 38 being integrally connected to the cross bearer sections. When sections F are assembled one-half of each cross bearer is composed of three separate parts and the opposite half of said cross bearer is formed by a member 39 integrally connected to a side and center sillsection. 40 indicatestdiagolial connecting" members arranged under the each of said membersconnecting four different sections. 7

Fig. 8 illustrates a section without side sill members, otherwise it'is of the same de- The sections G, shown in sist of a side sill member41, a center sill member 42 and cross bearer members 43 integrally connected to said sill members. Keys 44 and 45 lock the adjacent sections together. 46 indicates diagonal members arranged above the sections and constituting tension members which tend to keep the overlapping center sill members in engagement.

In the ""odified form shown in Fig. 10. sections H are arranged on opposite sides of a center sill 47. This center sill is preferably a single member which connects the' The sections H are similar to the shown in Fig. 9, but they are side sill members. Sections H are preferablyconnected to each other by tie bars 48 arranged above the center sill. These tie bars 48 are simply diagonal bars arrangedlike the connecting members 46 shown'in Fig. 9. t s

In Fig. 11 I have shown the-underframe bolsters. sections G,

sections,

connecting provided with an end section J which comprises draft sills integrally connected at their outer ends by a buffer block 49. Cross bearersections 50 and a center sill section 51 are-integrally connected to the draft sills. The end sect-ion J is preferably secured to an intermediatesection K by means of a plate 52. A bolster L comprises side members 53 which are not integral with the draft sills, said bolster members being connected to the draft sills by a plate 54. A filler block 55 is arranged between the draft sills at the middle of the bolster. j I While I have herein shown end members in the form of castings which constitute a bolster and side sills, it will be understood that this invention is not limited to such a construction. The end portions of the underframe could, if desired, be built up of rolled or pressed metal Various other modified forms of the cast metal sections herein shown and various methods of securing the sections together will suggest themselves tothose skilled in the art, and it is therefore understood that this invention is not limited to the exact construction herein shown.

Modifications of the cast metal sections shown can be designed for various types of passenger and freight cars, including hopper and tank cars. For example, on tank cars the bolsters and cross bearers may be curved to fit the tank, or if desired the cross bearers may be omitted.

What I claim and desire to secure'by Letters Patent is: Y

1. An underframe se tion composed of a single casting adapted to extend across a railway car and comprisinga sill section having a lateral stitute a portion of a sectional cross bearer.

2. An underframe section composed of a single. casting adapted to extend across a railway car and comprising a sill section having lateral extensions adapted to constitute cross bearer sections.

3. An underframe comprising overlapping cast metal center sill sections, each of said sections being provided with an integral extension adapted to form part of a cross bearer. it 4. A car underframe comprising cast -metal sections connected together so that their marginal portions constitute a center silland cross bearers.

A cast metal underframe section having an extension which is adapted to extend from the center to the side of a railway car and constitute a portion of a cross bearer.

6. A cast metal underframe section comprising staggered cross bearer sections inte: grally connected together.

7. An underframe section composed of a single casting comprising a sill section having end and intermediate extenslons adapted beams. J

, to engage corresponding extensions on a similar section.

8. An underframe for cars comprising cast metal sections, each of said sections having a short center sill and short side'sills, the side sills being formed integral with projectiplns which extend laterallyfrom the center s1 9. A car part comprisinga short center sill section, a short side sill section, and cross bearer sections, all of said sections being integrally connected together.

10. A car part composed of a single casting comprising a center sill section, a side Slll sectlon, and a cross bearer section, the

center sill section being longer than the side sill section.

11. An underframe for cars comprising a center sill, cross bearers, and side sills, said parts being composed of overlapping cast metal sections the adjacent faces of which extend across the car.

12. A car underframe having a center sill, side sills and cross bearers composed of overlapping cast metal sections which extend across the car, and means for connecting said sections together.

13. A sectional underfrarne part comprising a center sill section having an integral projection which is adapted to overlap a similar section and constitute a portion of a cross-bearer.

14. A sectional underframe part comprising a center sill section having lateral projections which are adapted to overlap similar sections, and side sills connected to said projections.

15. A sectional underframe part comprising a center sill section having integral end and intermediate lateral projections whichare adapted to engage a similar section.

16. A car part composed of a casting having end and intermediate portions integrally connected together and adapted to constitute cross bearer sections.

17. A car part composed of a single casting and comprising a center sill section having end and intermediateprojections adapted to constitute cross bearer sections.

18. A car part comprising a center sill section having end projections adapted to constitute cross bearer sections.

19. A car part in the form of a castin having marginal portions adapted to constitute a center sill section and a cross bearer section.

20. A car part adapted to extend across a car and comprising a center sill section having an integral lateral projection adapted to constitute a cross bearer section.

21. A car underframe comprising cast metal center sill and cross bearer sections which extend entirely across the car and are secured together so as to constitute a center sill-and cross bearers, the erossbearer seetions being formed by integral projections which extend laterally from the center sill sections.

22. A car part comprising a bolster section, a sill section and a cross bearer section, all of said parts-being integrally connected together.

23. A car part 'comprisin tion, a center sill section, an a cross bearer section, all of said part-s being integrally connected together.

2-1. A car part comprising a bolster section and a cross bearer section integrally connected together.

25. An underframe for cars comprising cast metal sections, one of said sections being provided with a face which extends substantially from the center to the side of the car and overlaps another section.

26. An underframe for cars having bol-" sters, cast metal sections arranged between the bolsters, each of said sections being provided with a lateral extension, which overlaps another section, and side sills connected to said extensions.

27. An underfranic for cars having a center sill, bolsters, cast metal sections arranged between said bolsters, one of said sections being provided with a projection which extends laterally from the center'sill and overla'ps another section, and a side sill connected to said projection.

28. An underframe for cars having a center sill, bolsters, cast metal sections connecting said bolsters, each of said sections being provided with a projection which extends laterally from the center sill and engages another section, and side sills connected to said projections.

29. An underframe for cars comprising overlapping cast metal sections the adjacent faces'of which extend across the car.

30. An underframe for cars comprising overlapping cast metal sections the adjacent faces of-which extend substantially from the center to the sideof the car.

31. An underframe for cars comprising bolsters, and cast metal sections interposed between said bolsters, one of said sections being provided with a face which extends across the car and overlaps another section.

32. A car underframe comprising bolsters, and cast metal underframe sections which extend across the car arranged between the bolsters, said bolsters being connected by a member arranged under said sections. a 33. A car underframe comprising bolsters,- overlapping cast metal underframe sections which extend across the car arranged be tween the bolsters, and a member connecting said bolsters, said connecting member beingindependent of said underframe sections.

'34. A car underframe comprising a sill,

cross bearers, said parts being-composed of cast metal sections, and a connecting mema bolster secber arranged under one of said sections, said connecting member .being securedv to the underframe at points beyond 'the last mentioned section.

35. A car underframe Comprising a sill, and cross bearers, said parts being composed of sections which extend across the car, three of said sections being connected together by a member arranged below the same.

.36. A car underframe composed of abutting cast metal sections which extend across the car, three of said sections being connected by a member arranged below the same.

37 An underframe comprising bolsters, a sill, cross bearers, said sill and cross bearers being composed of cast metal sections which extend across the car and are arranged between the bolsters, and means for connecting said sections, three of said sections being. secured together by the same connecting member.

38. A car underfra-mecomprising a center sill, cross bearers, said parts being composed of cast metal sections which extend across the car, and a connecting member which extends across one of said sections secured to sections on opposite sides thereof.

39. An underframe for cars comprising a sill composed of overlapping cast metal sections which extend across the car, v and a connecting member which extends'across one of said sections secured to sections adjacent thereto.

40. A car underframe sectioncomposed of a single casting having intermediate projections adapted to interlock with a similar section.

41. A car underframe section composed of a casting-having an intermediate projection adapted to fit in a recess in a similar section. i

42. A center sill section having integral intermediate projections adapted to inter-' lock with a similar section. 43. A center sill section having a lateral intermediate projection adapted to interlock with a similar section.

44:. A car underframe comprising overlapping sections, each of said sections being inrality of overlapping cast terlocked with and riveted to the intermediate portion of an adjacent section.

A car underframe comprising bolsters, sill sections'connecting said bolsters, each of said sill sections being provided with the intermediate portion 0t lateral projections which interlock with a similar section.

46. A car underframe comprising bolsters, and a center: sill member composed of a plumetal sections which connect saidbolsters, an end portion of each of said sections being secured to the l intermediate portion of an adjacent section.

V 47. A car. underframe comprising bolsters, and a sill member composed of cast metal sections which connect said bolsters, each of said sections being interlocked with the interiitediate portion of an adjacent section.

48. A car underframe comprising substantially Z shaped cast metal sections,- each of said sections constituting a portion of- 'a center sill and a portion of a cross bearer.

a9. An underframe section in the form of a. substantially Z shaped casting, said section being adapted to extend across a car and constitute a portion of a center sill.

'00. A substantially Z shaped casting adapted to extend across a railway ca-ran constitute a portion of a center sill.

51. A substantially .Z shapedcasting adapted to extend across a railway car and constitute a portion of a longitudinal sill.

52. A car underframe section composed of a casting having a substantially Z shaped face which is adapted to extend across the car and overlap a similar section.

53. A car u'nderframe section composed of a casting having substantially Z shaped faces which are adapted to'extend 'across the car and engage a similar section.

54. A car'underframe including substantially Z shaped castings, the meeting edges of which overlap.

Inrtestimony whereof I hereunto aflix my signature in the resence of two witnesses, this 31st day of ugust, 1909. ALBERT J. MGGAULEY. Witnesses:

JEAN A. MAoDoNnL, FRANCES B. HARTY. 

